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CVE-2015-5381

18
FAUCET Score

CVE-2015-5381 is a cross-site scripting (XSS) vulnerability affecting Roundcube Webmail 1.1.x before version 1.1.2, allowing remote attackers to inject arbitrary web script or HTML via the _mbox parameter. This medium-severity vulnerability (CVSS 6.1) requires user interaction and can lead to information disclosure and integrity compromise. While no active exploitation, public exploit code, or significant community discussion has been observed, organizations using affected Roundcube versions should apply the patch.

Impacted Technologies

VendorProductVersion(s)CPE
1.1.1CPE matchmatch criteria
cpe:2.3:a:roundcube:roundcube_webmail:1.1.1:*:*:*:*:*:*:*
1.1CPE matchmatch criteria
cpe:2.3:a:roundcube:webmail:1.1:*:*:*:*:*:*:*
1.1CPE matchmatch criteria
cpe:2.3:a:roundcube:webmail:1.1:beta:*:*:*:*:*:*
1.1CPE matchmatch criteria
cpe:2.3:a:roundcube:webmail:1.1:rc:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.1MEDIUM

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
2.7
CvssVersion
3.0

Exploit Intelligence

EPSS Score
2.53%
Probability of exploitation in next 30 days
EPSS Percentile
83.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0253 is in the 92nd percentile among its peer group of 26,219 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

github.com / roundcube/roundcubemail/commit/b782815dacda55eee6793249b5da1789256206fc
Issue TrackingPatchThird Party Advisory
github.com / roundcube/roundcubemail/issues/4837
Issue TrackingPatchThird Party Advisory
roundcube.net / news/2015/06/05/updates-1.1.2-and-1.0.6-released
PatchVendor Advisory
trac.roundcube.net / ticket/1490417
Issue TrackingPatchThird Party Advisory
openwall.com / lists/oss-security/2015/07/07/2
Mailing ListPatchThird Party Advisory